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The root command for the above example is :ROUTe.
This is an optional command word (as indicated by the
brackets in the table) and need not be used.
Note that there must be a space between the command
word and the parameter. In the above example, there is
a space between the :OPEN command word and the
ALL parameter.
SCPI command words and Common Commands are
not case sensitive. They can be sent in uppercase or
lowercase. The commands in Table 3-2 show a combi-
nation of upper and lowercase characters. The upper-
case characters identify the short-form version of the
command. For example, all the following versions of
the same program message are valid:
3.7.5 Syntax rules
The following information explains some of the pro-
gramming syntax for the Model 7001. For more com-
plete information see Programming Syntax which is
located just after the tab labled “SCPI Command Sub-
systems”.
General form
The general form for SCPI commands is demonstrated
in Table 3-2. Notice that they are hierarchical in nature
and begin with a root command. For example, to open
all channels, you would send the following command:
:OPEN
ALL
Table 3-2
Abbreviated SCPI command summary
:SYSTem
:PRESet
[:ROUTe]
:CLOSe <list>
:STATe?
:OPEN <list>|ALL
:SCAN <list>
:INITiate
:ABORt
:ARM
:LAYer2
:COUNt <n>|INF
:DELay <num>
:SOURce HOLD|IMMediate|
TIMer|MANual|BUS|TLINk|
EXTernal
:TIMer <num>
:TRIGger
:COUNt <n>|INF
:AUTo ON/OFF
:DELay <num>
:SOURce HOLD|IMMediate|MANual|
BUS|TLINk|EXTernal|TIMer
:TIMer <num>
Subsystem command path.
Set scan to a default configuration (see Table 5-6)
Subsystem command path.
Path and command to close specified channels:
Request channels that are closed.
Open specified (or all) channels.
Path and command to specify channel list:
Initiate one trigger (scan) cycle.
Reset trigger system and goes to idle state.
Subsystem command path to configure scan:
Path to program scan layer:
Program number of scans (1 to 9999, or INFinite).
Program delay (0 to 99999.999 seconds
Select event to control scan spacing.
Set timer interval (0.001 to 99999.999 sec).
Subsystem command path to program channel layer:
Program number of channels (1 to 9999, or INFinite).
Enable/disable automatic scan list count.
Program delay (0 to 99999.999 sec)
Select event to control channel spacing.
Set timer interval (0.001 to 99999.999 sec).
Note: Command shortform is indicated by the uppercase characters. For example, instead of sending “:arm:layer2:source immediate”,
you can send “:arm:lay2:sour imm”.
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